var Filer = require('../..'); var util = require('../lib/test-utils.js'); var expect = require('chai').expect; var constants = require('../../src/constants.js'); describe('fs.open', function() { beforeEach(util.setup); afterEach(util.cleanup); it('should be a function', function() { var fs = util.fs(); expect(fs.open).to.be.a('function'); }); it('should return an error if the parent path does not exist', function(done) { var fs = util.fs(); fs.open('/tmp/myfile', 'w+', function(error, result) { expect(error).to.exist; expect(error.code).to.equal("ENOENT"); expect(result).not.to.exist; done(); }); }); it('should return an error when flagged for read and the path does not exist', function(done) { var fs = util.fs(); fs.open('/myfile', 'r+', function(error, result) { expect(error).to.exist; expect(error.code).to.equal("ENOENT"); expect(result).not.to.exist; done(); }); }); it('should return an error when flagged for write and the path is a directory', function(done) { var fs = util.fs(); fs.mkdir('/tmp', function(error) { if(error) throw error; fs.open('/tmp', 'w', function(error, result) { expect(error).to.exist; expect(error.code).to.equal("EISDIR"); expect(result).not.to.exist; done(); }); }); }); it('should return an error when flagged for append and the path is a directory', function(done) { var fs = util.fs(); fs.mkdir('/tmp', function(error) { if(error) throw error; fs.open('/tmp', 'a', function(error, result) { expect(error).to.exist; expect(error.code).to.equal("EISDIR"); expect(result).not.to.exist; done(); }); }); }); it('should return a unique file descriptor', function(done) { var fs = util.fs(); var fd1; fs.open('/file1', 'w+', function(error, fd) { if(error) throw error; expect(error).not.to.exist; expect(fd).to.be.a('number'); fs.open('/file2', 'w+', function(error, fd) { if(error) throw error; expect(error).not.to.exist; expect(fd).to.be.a('number'); expect(fd).not.to.equal(fd1); done(); }); }); }); it('should return the argument value of the file descriptor index matching the value set by the first useable file descriptor constant', function(done) { var fs = util.fs(); var firstFD = constants.FIRST_DESCRIPTOR; var fd1; fs.open('/file1', 'w+', function(error, fd) { if(error) throw error; expect(fd).to.equal(firstFD); done(); }); }); it('should create a new file when flagged for write', function(done) { var fs = util.fs(); fs.open('/myfile', 'w', function(error, result) { if(error) throw error; fs.stat('/myfile', function(error, result) { expect(error).not.to.exist; expect(result).to.exist; expect(result.type).to.equal('FILE'); done(); }); }); }); });